Bolded items have been drafted and are generally complete; items in italics are currently being researched. Items in both bold and italics are tentatively drafted but likely to change significantly before the final draft.
Gaku ichibu
Old Keicho ichibu
Standard Keicho ichibu
Single Hon Keicho ichibu
Double Hon Keicho ichibu
Genroku ichibu
Hoei ichibu
Shotoku ichibu
Kyoho ichibu
Sado ichibu
Genbun ichibu
Bunsei ichibu
Tenpo ichibu
Ansei ichibu
Man'en ichibu
Genroku nisshu
Bunsei isshu
Tenpo nisshu
Man'en nisshu
Early Bunsei nibu
Late Bunsei nibu
Ansei nibu
Man'en nibu
Meiji nibu
Meiwa Go Momme
Meiwa Ko Nanryo
Kansei Ko Nanryo
Shin Nanryo
Bunsei Nanryo isshu
Tenpo ichibu
Kaei isshu
Trade nisshu
Ansei ichibu
Meiji ichibu
Meiji isshu
Shonai ichibu
Introduction
Annotated bibliography
Japanese name breakdown
Important people
Explanation of book structure
What came before gold bars
Discussion of gold design
Gold minting process
What came before silver bars
Silver minting process
Appendix graphs
Attribution guide
Keicho ichibu are very complicated, and I've done a significant amount of analysis of examples auctioned since 2008. Through this I've put together a theory that would greatly change how they're organized, but I want to get more feedback before publishing this theory in the book. This data has been released in a research paper, available here in both English and Japanese.
Full drafted sections will not be made available until the book has been released.
The Rectangle Coins